[gnome-power-manager] Fix crash due to unreffing floating GVariants (rh #662279)

[Dan Williams <dcbw src gnome org>]

commit 1efe47d4961e893ac2b6fbab4af25ead3f0d89d6
Author: Dan Williams <dcbw redhat com>
Date:   Wed Dec 15 14:36:45 2010 -0600

    Fix crash due to unreffing floating GVariants (rh #662279)
    
    Anything created wtih g_variant_new_* is floating, as is the return
    value from g_variant_builder_end.  Since they are floating, unreffing
    them is an error, and that causes a double-free later on.  Leave them
    alone and they'll clean up after themselves.
    
    Showed up nicely in valgrind using G_SLICE=always-malloc.

 src/gpm-manager.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/src/gpm-manager.c b/src/gpm-manager.c
index 4c9fc3a..9a241d6 100644
--- a/src/gpm-manager.c
+++ b/src/gpm-manager.c
@@ -2099,10 +2099,6 @@ gpm_manager_dbus_method_call (GDBusConnection *connection,
 out:
 	if (array != NULL)
 		g_ptr_array_unref (array);
-	if (tuple != NULL)
-		g_variant_unref (tuple);
-	if (value != NULL)
-		g_variant_unref (value);
 }
 
 /**